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<p style="margin-top:0; margin-bottom:0"><font size="2"><span style="font-size:11pt"><span style="font-size:12pt; font-family:Calibri,Helvetica,sans-serif"><span></span>Jefferson Lab's Graduate Student and Post-Doc Association Wiki:</span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><span style="font-family:Calibri,Helvetica,sans-serif"></span><span style="font-size:12pt; font-family:Calibri,Helvetica,sans-serif">
</span><a href="https://gspda.jlab.org/wiki/index.php/Main_Page" target="_blank" rel="noopener noreferrer" id="LPlnk78984" previewremoved="true"><span style="font-size:12pt; font-family:Calibri,Helvetica,sans-serif">https://gspda.jlab.org/wiki/index.php/Main_Page</span></a><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><span style="font-family:Calibri,Helvetica,sans-serif"></span><span style="font-size:12pt; font-family:Times New Roman,Times,serif,serif,EmojiFont"></span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><span style="font-family:Calibri,Helvetica,sans-serif"></span><span style="font-size:12pt; font-family:Calibri,Helvetica,sans-serif"> Please RSVP to: patient@jlab.org
by COB on May 13, 2019</span><br>
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Wednesday, May 15, 2019</span><br>
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***F113***</span><br>
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12:00-1:00 pm</span><br>
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</span><span style="font-size:12pt; font-family:Times New Roman,Times,serif,serif,EmojiFont"></span></span></font><font size="2"><span style="font-size:11pt"><span style="font-size:12pt; font-family:Times New Roman,Times,serif,serif,EmojiFont"></span></span></font></p>
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"High Q2 Elastic Scattering on Three-Body Nuclei</span><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">"</span><span style="font-family:Calibri,Helvetica,sans-serif"></span></font><font size="2"><span style="font-size:11pt"><span style="font-size:11pt"></span><span style="font-size: 12pt; font-family: Calibri, Helvetica, sans-serif;"> </span></span></font></div>
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Scott Barcus</span><br>
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Jefferson Lab</span><br>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><span style="font-family:Calibri,Helvetica,sans-serif"></span><font size="2"><span style="font-size:11pt"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">Abstract:</span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="font-family:Calibri,Helvetica,sans-serif"></span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">By
mining data from Jefferson Lab Hall A experiment E08-014</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"> a new</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">
3He</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">elastic cross section
</span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">was extracted from a large quasi</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">elastic
background.</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">When combined with
</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">recent high Q2 3He
</span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">elastic cross section</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">measurements
from Jefferson La</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">th</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">new</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">
data point</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"> improve</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"> our knowledge
</span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">of the
</span><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">form factors at large momentum</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">transfers.</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">The
new form factor fits were compared to </span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">modern theoretical predictions.</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">A
conventional theoretical approach modeling two and </span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">three-body nucleon</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">interactions
with relativistic corrections was reasonably successful </span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">at</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">predicting
the charge form factor</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">owever, theory failed to accurately predict the magnetic</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">orm</span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">factors with the first diffractive minimum
of</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">the 3He magnetic form factor actually moving further
</span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">away from theory.</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">This
disagreement between theory and experiment provides motivation for</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">new</span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">asymmetry measurements using polarized 3He
and a polarized electron</span><span style="color:black"><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">beam which would be able
</span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></span></font></div>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span>
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<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span><font size="2"><span style="font-size:11pt"><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">to locate the true locations of the diffractive</span><span style="color: black; font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;">minima.</span><br>
<span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"></span></span></font><br>
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